package idv.arthur.work;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.google.gson.Gson;

public class QueryMailList extends HttpServlet {
	private static final long serialVersionUID = 1L;

	public QueryMailList() {
		super();
	}

	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doPost(request, response);
	}

	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		Widgets wid = new Widgets();
		request.setCharacterEncoding( wid.UIcodeSet );
		response.setContentType("application/json");
		response.setCharacterEncoding( wid.UIcodeSet );
		
		Connection conn = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		String errPars = "}";
		
		String strSQL = "SELECT userid, email, username, phonenum FROM personnel";
		ArrayList<Personnel> personnels = new ArrayList<Personnel>();

		try {
			conn = wid.getConn(true);
			ps = conn.prepareStatement(strSQL);
			rs = ps.executeQuery();
			while (rs.next()) {
				Personnel p = new Personnel();
				p.setId(rs.getString("userid"));
				p.setName( wid.DB2UI( rs.getString("username"),conn.getMetaData().getDatabaseProductName() ) );
				p.setEmail(rs.getString("email"));
				p.setPhone(rs.getString("phonenum"));
				personnels.add(p);
			}
		} catch ( SQLException e ) {
			wid.kem(conn, ps, e, wid.toEType("SQLException")+errPars, wid.isPrint2Console );
		} catch ( UnsupportedEncodingException e) {
			wid.kem(conn, ps, e, wid.toEType("UnsupportedEncodingException")+errPars, wid.isPrint2Console );
		} catch ( Exception e) {
			wid.kem(conn, ps, e, wid.toEType("Exception")+errPars, wid.isPrint2Console );
		} finally {
			try {
				if (rs != null) {rs.close();}
				if (ps != null) {ps.close();}
				if (conn != null) {conn.close();}	
			} catch (SQLException e ) {
				System.out.println(wid.errProcess(e));
			}
		}

		response.getWriter().write(new Gson().toJson(personnels));
	}
}